Array substrate and display panel
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorZhitao Lu
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Abstract
The present application provides an array substrate and a display panel; the array substrate includes a display unit and a light sensing unit. A first electrode plate and a second electrode plate of a first capacitor of the light sensing unit are both transparent electrode plates, the first electrode plate is formed from a newly-added transparent conductive layer, the second electrode plate is served by a common electrode of the display unit, and the display unit and the light sensing unit work alternately in time-division within a time period of one frame to alleviate a problem of low aperture ratio in an existing display panel.
Claims18
An array substrate, comprising a base substrate and a pixel circuit disposed on the base substrate, wherein the pixel circuit comprises a driving circuit and a light sensing circuit, and the light sensing circuit comprises a first transistor, a second transistor, and a first capacitor,
- wherein a gate of the first transistor is connected to a first control signal line, a first electrode of the first transistor is connected to a first power line, and a second electrode of the first transistor is connected to a first electrode of the second transistor;
- wherein the first capacitor comprises a first electrode plate and a second electrode plate, the first electrode plate is connected to the second electrode of the first transistor and the first electrode of the second transistor, and the second electrode plate is connected to a common voltage signal line;
- wherein the first electrode plate and the second electrode plate are both transparent electrode plates, and the driving circuit and the light sensing circuit share the common voltage signal line;
- and
- wherein the common voltage signal line is entirely disposed in a same layer as the gate of the first transistor;
- wherein an orthographic projection of the first capacitor on the base substrate entirely covers an orthographic projection of the first transistor on the base substrate.
A display panel, comprising an array substrate, wherein the array substrate comprises a base substrate and a pixel circuit disposed on the base substrate, the pixel circuit comprises a driving circuit and a light sensing circuit, and the light sensing circuit comprises a first transistor, a second transistor, and a first capacitor,
- wherein a gate of the first transistor is connected to a first control signal line, a first electrode of the first transistor is connected to a first power line, and a second electrode of the first transistor is connected to a first electrode of the second transistor;
- wherein the first capacitor comprises a first electrode plate and a second electrode plate, the first electrode plate is connected to the second electrode of the first transistor and the first electrode of the second transistor, and the second electrode plate is connected to a common voltage signal line;
- wherein the first electrode plate and the second electrode plate are both transparent electrode plates, and the driving circuit and the light sensing circuit share the common voltage signal line;
- and
- wherein the common voltage signal line is entirely disposed in a same layer as the gate of the first transistor;
- wherein an orthographic projection of the first capacitor on the base substrate entirely covers an orthographic projection of the first transistor on the base substrate.
Dependencies are inferred from the claim text.